Commit 8fdeafd6 authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

eth: mlx4: don't try to complete XDP frames in netpoll 



mlx4 doesn't support ndo_xdp_xmit / XDP_REDIRECT and wasn't
using page pool until now, so it could run XDP completions
in netpoll (NAPI budget == 0) just fine. Page pool has calling
context requirements, make sure we don't try to call it from
what is potentially HW IRQ context.

Reviewed-by: default avatarTariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250213010635.1354034-3-kuba@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 8533b14b

drivers/net/ethernet/mellanox/mlx4/en_tx.c

+2 −0
Original line number Diff line number Diff line
@@ -450,6 +450,8 @@ int mlx4_en_process_tx_cq(struct net_device *dev, 


	if (unlikely(!priv->port_up))

		return 0;

	if (unlikely(!napi_budget) && cq->type == TX_XDP)

		return 0;



	netdev_txq_bql_complete_prefetchw(ring->tx_queue);